package test;



/**
 * 输入俩个字符串 , 返回重复出现的字符
 */
public class test11 {
    int foo(int x, int y) {
        if (x <= 0 || y <= 0)
            return 1;
        return 3 * foo(x-6,y/2);

    }

    public static void main(String[] args) {
        test11 t = new test11();
        t.foo(20,13);


    }
}


